Update dependency karma-webpack to v2 (master)

[appcues-wss]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
karma-webpack	^1.7.0 -> ^2.0.0

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	CVE
Critical	9.1	CVE-2019-10744
High	7.5	CVE-2017-16138
High	7.4	CVE-2020-8203
High	7.2	CVE-2021-23337
Medium	6.5	CVE-2018-3721
Medium	6.5	CVE-2019-1010266
Medium	5.6	CVE-2018-16487
Medium	5.3	CVE-2020-28500

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Release Notes

webpack-contrib/karma-webpack (karma-webpack)

v2.0.10

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Bug Fixes

• karma-webpack: correctly coalesce idx ({Number}) in filepaths (#​287) (5fa2409)
• correctly escape {Regex} in custom file handler (#​293) (906ed52)
• disable webpack rebuilds on karma --single-run (41d1912)
• package: add webpack >= v4.0.0 (peerDependencies) (#​301) (99ddad8)

v2.0.9

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Bug Fixes

• ensure webpack paths include a trailing slash (#​285) (be2b0e8), closes #​284

v2.0.8

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Bug Fixes

• use os.tmpdir() to safely store _karma_webpack_ (#​279) (0616dda)

v2.0.7

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DEPRECATED due to publishing issue

v2.0.6

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Bug Fixes

• work with sourcemaps when mocha is wrapped (#​237) (#​238) (c952bcd)

v2.0.5

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Bug Fixes

• pass on error to callback for better error messages (#​262) (466581f)
• use file.originalPath instead of file.path (#​218) (0d075b0)

v2.0.4

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2.0.4 (2017-07-07)

v2.0.3

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Bug Fixes

• readFile: handle path doesn't exist error (#​208) (907ed72)
• don't swallow configuration errors (#​232) (4216f13)
• readFile on windows (#​226) (cad9f8b)

v2.0.2

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Bug Fixes

• readFile: handle path doesn't exist error (#​208) (907ed72)

v2.0.1

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Bug Fixes

• package: use babel-runtime is a dependency (dependencies) (#​312) (c45cdf3)

v2.0.0

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Chores

• package: update webpack peerDependencies. (9fd5fdf)

Bug Fixes

• config: webpack rc4 schema enforcment (fixes #​193) (e6a3cb7)

BREAKING CHANGES

• config: Remove entry:{} from test configurations

When updating to "webpack": "2.2.0-rc.4" & "karma-webpack": "1.8.2" you have to pull the entry property if it's set to an empty object so it defaults to a function within karma-webpack

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